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Le site de Bouchain (France) : apports d'une étude pluridisciplinaire à l'évolution paléoenvironnementale de la vallée de l'Escaut durant l'Holocène moyen

Abstract : The Bouchain site, at the contact of the Ostrevant slope and the alluvial plain of the Escaut, has preserved the traces of a human activity centered on a period very little documented in the Hauts‑de‑France region: the Late Neolithic. A pluridisciplinary palaeoenvironmental study (geomorphology, palynology, malacology), strenghtened by 20 radiocarbon dates, has been carried out. It shows the development of a riverbank site, bordered by a channel in the process of being filled in by silt and then peat; the whole site being then covered by organic silts, then essentially detrital material, from the second part of the Late Neolithic to the Gallo‑Roman period. A detritical crisis is identified around 5000 cal BP, also observed on other sites in the region. The palynological data shows a relatively stable landscape dominated by the riparian forest (alder grove) on the edge of the plain and the oak grove on the slopes. The malacology data suggests a predominantly aquatic landscape that opens up and becomes terrestrial in the Gallo‑Roman period.
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https://hal-inrap.archives-ouvertes.fr/hal-03678234
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Submitted on : Wednesday, May 25, 2022 - 11:31:06 AM
Last modification on : Tuesday, November 22, 2022 - 2:26:15 PM

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Pierre-Gil Salvador, Muriel Boulen, Gilles Leroy, Tarek Oueslati. Le site de Bouchain (France) : apports d'une étude pluridisciplinaire à l'évolution paléoenvironnementale de la vallée de l'Escaut durant l'Holocène moyen. Bulletin de l'Association française pour l'étude du quaternaire, 2021, Quaternaire, 32 (4), pp.253‑280. ⟨10.4000/quaternaire.15978⟩. ⟨hal-03678234⟩

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